The Effect of the Number of Floors on the Construction of the Houses Built by Conventional System and Precast Technology

  • Kongkoon Tochaiwat Faculty of Architecture and Planning, Thammasat University
  • Narongrit Pimma Pruksa Real Estate Public Company Limited
  • Thanaphum Mantala WBP Property Group
Keywords: Number of floors, Construction duration, Construction cost, Construction quality, Precast technology

Abstract

This research studied the construction performance (durations, costs, and quality) of one-storey and two-storey houses built by traditional and precast load-bearing wall systems
and analyzed the effects of the number of floors on the house construction performance. The study was done by (1) a detailed observation of the construction processes of eight
houses, i.e. two one-storey houses & two two-storey houses built by the traditional system and two one-storey houses & two two-storey houses built by precast technology, and
(2) an interview of three senior construction staffs in a housing project. The results were analyzed by Descriptive Statistics and Content Analysis. The results showed that: (1) As to
the quality perspective, it was found that the number of defects per area is constant for precast load bearing wall houses while it is increased for conventional ones, when the
number of floor is increased; (2) The construction durations of the traditional system houses are increased (130.26%) depending on the number of floors because the upper storey have
more processes than the first storey. On the other hand, construction duration in precast houses will be less increased (55.00%) when the storey is increased because the second-floor
component installation will be faster than the first floor ones and the amount of components
in the upper storey is also less than the first storey; and (3) The unit cost of precast houses
is decreased when the number of floor is increased while that of conventional houses is
increased. The findings can help real estate developers select the building systems appropriate
to the houses in their projects.

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Published
2018-06-29
How to Cite
Tochaiwat, K., Pimma, N., & Mantala, T. (2018). The Effect of the Number of Floors on the Construction of the Houses Built by Conventional System and Precast Technology. nternational ournal of uilding, rban, nterior and andscape echnology (BUILT), 5, 5-16. etrieved from https://ph02.tci-thaijo.org/index.php/BUILT/article/view/169297